AGGREGATE WAQTC FOP AASHTO T 2 (15) T2_short_15.docx Aggregate 9 - 1 Pub. October 2015 SAMPLING OF AGGREGATES FOP FOR AASHTO T 2 Scope This procedure covers sampling of coarse, fine, or a combination of coarse and fine aggregates (CA and FA) in accordance with AASHTO T 2-91. Sampling from conveyor belts, transport units, roadways, and stockpiles is covered. Apparatus • Shovels or scoops, or both • Sampling tubes of acceptable dimensions • Mechanical sampling systems: normally a permanently attached device that allows a sample container to pass perpendicularly through the entire stream of material or diverts the entire stream of material into the container by manual, hydraulic, or pneumatic operation • Belt template • Sampling containers Procedure – General Sampling is as important as testing. The technician shall use every precaution to obtain samples that are representative of the material. Determine the time or location for sampling in a random manner. 1. Wherever samples are taken, obtain multiple increments of approximately equal size. 2. Mix the increments thoroughly to form a field sample that meets or exceeds the minimum mass recommended in Table 1.
SAMPLING OF AGGREGATES FOP FOR AASHTO T 2
May 21, 2023
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